CN107750473A - Transmission opportunity for multi-user operation competes - Google Patents

Abstract

Describe method, system and the equipment for carrying out radio communication at station.The station is based at least partially on the first Traffic type and the determination for transmitting multi-user (MU) frame is accessed into (EDCA) parameter set come the first enhanced distributed channel identified for the first access category, and competes and obtain the access to the transmission opportunity on shared radio-frequency spectrum band to be communicated in MU patterns with a number of other stations.The competition is based at least partially on the first EDCA parameter sets.

Description

Transmission opportunity for multi-user operation competes

Cross reference

Entitled " the Transmission that patent application claims were submitted by Asterjadhi et al. on June 16th, 2015 (transmission opportunity for being used for multi-user operation is competing by Opportunity Contention for Multiple User Operation Strive) " U.S. Provisional Patent Application No.62/180,522 and submitted on June 15th, 2016 by Asterjadhi et al. It is entitled that " Transmission Opportunity Contention for Multiple User Operation (are used to use The transmission opportunity competition of family operation) " U.S. Patent application No.15/183,322 priority, each of which part application is equal It is transferred to present assignee.

Background

Relate generally to the transmission of radio communication, the more particularly, to multi-user operation in WLAN (WLAN) below Chance competes.

Wireless network (such as WLAN) may include the access point to be communicated with one or more stations (STA) or wireless device (AP).AP can be coupled to network (such as internet), and may be such that wireless device can be via the network service (or with coupling The other equipment of access point into services set (for example, Basic Service Set (BSS) or extended service set (ESS)) is communicated). Wireless device can bidirectionally communicate with the network equipment.For example, in a wlan, STA can be via downlink (DL) and uplink Road (UL) communicates with associated AP.For STA angle, DL (or i.e. forward link) can refer to the communication arrived at a station from AP Link, and UL (or i.e. reverse link) can refer to slave station to AP communication link.In some cases, AP can concurrently with Multiple STA communications.For example, AP concurrently can be transmitted to multiple STA or concurrently received from multiple STA.Ieee standard 802.11ac provides the framework for DL multi-user (MU) multiple-input and multiple-output (MIMO) (DL MU-MIMO) pattern.IEEE is marked Quasi- 802.11ax proposal includes DL MU-MIMO patterns, DL OFDMs (DL OFDMA) pattern, UL MU-MIMO moulds Formula, UL OFDMA patterns.

General introduction

The disclosure can relate to the system for the multi-user operation in WLAN, method or apparatus.Specifically, AP or station mark Know the first enhanced distributed channel access (EDCA) parameter set for the first access category (or first access category collection), its In the first access category be based on the first Traffic type (or first Traffic type collection) and competition obtain to share radio-frequency spectrum band On transmission opportunity access after one or more frames for transmitting be multi-user (MU) frame determination.Stand and then competition is obtained to altogether The access of the transmission opportunity on radio-frequency spectrum band is enjoyed so that the set during several frames in MU patterns with other stations is (for example, one The set at individual or a number of other stations) communication.The competition is based on the first EDCA parameter sets.Winning access of the acquisition to transmission opportunity Competition when, the station to the station gather transmission trigger frame.Trigger frame is that the set that station is used for other stations signals the station During the allocated period being used for after the trigger frame from and/or the set of going to other stations up-link and/ Or the frame of the resource of downlink transmission.The resource may include but be not limited to one or more subbands of shared radio-frequency spectrum band, one The set at individual or multiple speed and/or other stations can be used for transmitting in UL patterns during the period after trigger frame or The other parameters received in DL patterns.After trigger frame is transmitted, AP and the station collective communication.The communication may include downlink Transmission or up-link transmission.

Describe a kind of method for carrying out radio communication at station (for example, AP) place.This method includes being based at least partially on First Traffic type and the determination for transmitting MU frames is identified into the first EDCA parameter sets for the first access category, Yi Jijing Strive and obtain the access to the transmission opportunity on shared radio-frequency spectrum band to be communicated in MU patterns with a number of other stations.The competition is extremely It is at least partly based on the first EDCA parameter sets.

Describe a kind of device for wireless communications.The device includes contention parameter selector and medium access contention Device, the contention parameter selector are based at least partially on the first Traffic type and identify the determination for transmitting MU frames for the First EDCA parameter sets of one access category, medium access contention device competition are obtained to sharing the transmission opportunity on radio-frequency spectrum band Access to be communicated in MU patterns with multiple stations.The competition is based at least partially on the first EDCA parameter sets.

Describe another equipment for being used for radio communication.The equipment includes being used to be based at least partially on the first traffic class Type and the determination for transmitting MU frames is identified into the device of the first EDCA parameter sets for the first access category, and for competing Strive and obtain to the access for sharing the transmission opportunity on radio-frequency spectrum band so as to the device to be communicated in MU patterns with multiple stations.The competition It is based at least partially on the first EDCA parameter sets.

Describe a kind of non-transient computer-readable media for storing the code for radio communication.The code includes holding Row is for being based at least partially on the first Traffic type and identify the determination for transmitting MU frames for the first access category The first EDCA parameter sets instruction, and executable obtained for competition to sharing connecing for the transmission opportunity on radio-frequency spectrum band Enter the instruction to be communicated in MU patterns with multiple stations.The competition is based at least partially on the first EDCA parameter sets.

Some examples of method described herein, device or non-transient computer-readable media can further comprise being used for Win process, feature, device or the instruction obtained to transmitting trigger frames when the competition of the access of transmission opportunity to multiple stations.Touch Hair frame may include the instruction of the first Traffic type.

Some examples of method described herein, device or non-transient computer-readable media can further comprise being used for Win obtain to communicated when the competition of the access of transmission opportunity during the transmission opportunity in MU frames with multiple stations process, Feature, device or instruction.Additionally or alternatively, in some instances, the first EDCA parameter sets are provided to sharing radio-frequency spectrum The access priority of band, the wherein access priority are selected from the group for including the following：With for being based at least partially on first Traffic type and frame are that the 2nd EDCA parameter sets identical access of the second access category of the determination of single user (SU) frame is excellent First level, than the 2nd higher access priority of EDCA parameter sets and the access priority lower than the 2nd EDCA parameter sets.

Some examples of method described herein, device or non-transient computer-readable media can further comprise being used to incite somebody to action The identifier of MU frames is input to MU queues and the first EDCA parameter sets is identified as to the EDCA parameter set associated with the MU queues Process, feature, device or instruction.MU queues may map to the MU frame associated with multiple Traffic types.

In some examples of method described herein, device or non-transient computer-readable media, the first EDCA parameters Collection is the linear function of the parameter of the group selected from the number for including the first access category and multiple stations.Additionally or alternatively, Some examples may include for being communicated with adjacent AP to consult process, feature, device or the instruction of the first EDCA parameter sets.

In some examples of method described herein, device or non-transient computer-readable media, MU patterns are selected from bag Include the group of DL OFDMA patterns, UL OFDMA patterns, DL MU-MIMO patterns and UL MU-MIMO patterns.Additionally or replace Ground, multiple stations can be selected from the group for including multiple recipient station and multiple senders station.

Brief description

Further understanding to the nature and advantages of the disclosure can be obtained by reference to the following drawings.In the accompanying drawings, it is similar Component or feature can have identical reference.In addition, each component of same type can by reference followed by Dash line and the second mark made a distinction between similar assembly are distinguish between.If first is used only in the description Reference, then any one component in the similar assembly that the description can be applied to have the reference of identical first without By the second reference how：

Fig. 1 shows the block diagram of the WLAN according to various aspects of the disclosure；

Fig. 2A illustrates the multi-user operation of the WLAN according to various aspects of the disclosure；

Fig. 2 B illustrate the multi-user operation of the WLAN according to various aspects of the disclosure；

Fig. 3 A illustrate according to various aspects of the disclosure to be used for competing the transmission obtained to sharing radio-frequency spectrum band by AP The example access category collection of the access of chance；

Fig. 3 B illustrate according to various aspects of the disclosure to be used for competing the transmission obtained to sharing radio-frequency spectrum band by AP The example access category collection of the access of chance；

Fig. 4 illustrates the communication between AP and several STA on the shared radio-frequency spectrum band according to various aspects of the disclosure Example timeline；

Fig. 5 illustrates the coordination between each AP in the WLAN according to various aspects of the disclosure；

Fig. 6 shows the block diagram of the wireless device according to various aspects of the disclosure；

Fig. 7 shows the block diagram of the wireless device according to various aspects of the disclosure；

Fig. 8 A show the diagram of the system including wireless device according to various aspects of the disclosure；

Fig. 8 B show the diagram of the system including wireless device according to various aspects of the disclosure；

Fig. 9 shows the flow chart for explaining the method for wireless communications according to various aspects of the disclosure；

Figure 10 shows the flow chart for explaining the method for wireless communications according to various aspects of the disclosure；

Figure 11 shows the flow chart for explaining the method for wireless communications according to various aspects of the disclosure；And

Figure 12 shows the flow chart for explaining the method for wireless communications according to various aspects of the disclosure.

It is described in detail

Described feature relates generally to the improvement systems, methods and/or devices for the multi-user operation in WLAN.Such as Previously indicated, ieee standard 802.11ax proposal includes DL MU-MIMO patterns, DL OFDMs (DL OFDMA) pattern, UL MU-MIMO patterns, UL OFDMA patterns and/or other MU multiplexer modes without station (for example, be used as AP equity (P2P) multiplexer mode, such as direct link set up (DLS) pattern or tunnelling DLS (TDLS) pattern).These MU moulds Formula make it possible in (Tx) pattern of transmission (for example, on DL) or in (Rx) pattern of reception (for example, on UL) across multiple User and Traffic type share transmission opportunity (for example, exchanging the period of one or more frames therebetween).This document describes be ranked The technology for the priority that equipment for obtaining the access for one or more transmission opportunitys to sharing radio-frequency spectrum band accesses, One or more transmission opportunitys can be used for exchanging MU frames or single user (SU) frame and passed by the equipment and its expected recipient Send or receive one of several Traffic types (for example, voice, video, best effort or backstage traffic).These technologies are in a variety of ways The priority being ranked via the communication of MU frames, and give in some cases preferential via the higher access of the communication of MU frames Level, lower access priority or the SU frame identical access priorities with being associated with identical Traffic type.

Also describe for which kind of Traffic type designated equipment can to transmit during allowing to transmit the transmission opportunity of MU frames Technology.Through the application, SU TSOP refer to that sender can be in SU patterns to the expected recipient of one or more therebetween The transmission opportunity of frame is transmitted, wherein sharing radio-frequency spectrum band (that is, identical channel) using identical for the frame of different recipients To send different at the time of.MU TXOP refer to that sender can receive in MU patterns to one or more is expected therebetween Side transmits the transmission opportunity of at least one frame, wherein at least one frame transmitted in MU patterns is identical at the time of but using altogether The subset for the subchannel of each frame transmitted in MU patterns of radio-frequency spectrum band is enjoyed to send/receive.

The following description provides examples and and the scope, applicability or the example that are illustrated in non-limiting claim.Can be right The function and arrangement of the key element discussed make change without departing from the scope of the present disclosure.Various examples can omit appropriately, Substitute or add various codes or component.For example, described method can be performed in order of different from described, and And it can add, save or combine various steps.In addition, feature with reference to described by some examples can in other examples by Combination.

With reference first to Fig. 1, block diagram illustrates the WLAN 100 according to various aspects of the disclosure (for example, realizing IEEE The network of at least one standard in 802.11 family of standards) example.WLAN 100 includes access point (AP) 105 and several wireless Equipment or station (STA) 115, such as movement station, personal digital assistant (PDA), other portable equipments, net book, notebook meter Calculation machine, tablet PC, laptop devices, display device (for example, TV, computer monitor etc.), printer etc..Although explain One AP 105, but WLAN 100 may include multiple AP 105.(it may include such as movement station (MS), moves each STA 115 Dynamic equipment, access terminal (AT), subscriber's installation (UE), subscriber station (SS) or subscri er unit) can be via respective communication link 120 It is associated and communicates with AP 105.Each AP 105 can have geographical coverage area 110, to cause geographical coverage area 110 Interior STA 115 can generally communicate with AP 105.STA 115 it is dispersible throughout geographical coverage area 110 everywhere.Each STA 115 can stay fixed or movement.

Although being not shown in Fig. 1, STA 115 can be covered by more than one AP 105 and therefore can be in different time It is associated with one or more AP 105.Single AP 105 and associated STA collection are referred to alternatively as BSS.ESS may include to connect BSS set.Dissemination system (DS) (not shown) can be used to connect the AP 105 in ESS.AP 105 geographical coverage area 110 are divided into sector, wherein each sector includes a part of (not shown) of the overlay area.WLAN 100 may include not Having for same type (for example, metropolitan area, home network etc.) and is covered different size of overlay area for the overlapping of different technologies Each access point 105 of cover area.Although being not shown, other wireless devices can communicate with AP 105.

Although STA 115 communication link 120 can be used to pass through AP 105 to communicate with one another, STA 115 can also be via Direct Radio Link 125 directly communicates with another STA 115.When both sides STA 115 is in AP 105 geographical coverage area 110 When middle or when one or without STA 115 in AP 105 geographical coverage area 110 during (not shown), two or more Individual STA 115 can communicate via direct Radio Link 125.The example of direct Radio Link 125 may include Wi-Fi direct connection, (TDLS) link is set up using Wi-Fi tunnelling direct link to connect come the connection established and other reciprocity (P2P) groups.These STA 115 in example can according to the family of standards of IEEE 802.11 (include but is not limited to 802.11b, 802.11g, 802.11a, 802.11n, 802.11ac, 802.11ad, 802.11ah, 802.11ax etc.) described by the WLAN for including physical layer and MAC layer Radio and baseband protocol communicate.In other realizations, other P2P connections and/or self-organizing can be realized in WLAN 100 Network.

In WLAN 100, AP 105 can be according to each version (including new wireless standard) of the standards of IEEE 802.11 Message is transmitted with least one STA 115 or receives message.AP 105 may include transmission opportunity manager 610.Transmission opportunity pipe Reason device 610 identifies the first EDCA parameter sets for the first access category, wherein the first access category is based at least partially on the One Traffic type and the determination that MU frames will be exchanged.Transmission opportunity manager 610 also competes acquisition on shared radio-frequency spectrum band The access of transmission opportunity is so as to the collective communication in MU frames with STA 115.The competition is based at least partially on the first EDCA ginsengs Manifold.

Fig. 2A illustrates the multi-user operation in the WLAN 200-a according to various aspects of the disclosure.WLAN 200-a bags Include AP 105-a and multiple associated STA 115-a, 115-b, 115-c and 115-d.AP 105-a and STA 115-a, 115-b, 115-c and 115-d can be the examples of the AP 105 that reference picture 1 describes and STA 115 each side.

When being operated in downlink MU patterns, AP 105-a can by corresponding communication link 120-a, 120-b, 120-c and 120-d is synchronously to each of STA 115-a, 115-b, 115-c, 115-d transmission control, management or data Signal.Some possible downlink MU patterns include DL MU-MIMO patterns, DL OFDMA patterns, combination of the two or Another or a variety of MU patterns.

Fig. 2 B illustrate the multi-user operation in the WLAN 200-b according to each side of the disclosure.WLAN 200-b include AP 105-b and multiple associated STA 115-e, 115-f, 115-g and 115-h.AP 105-b and STA 115-e, 115-f, 115-g and 115-h can be the examples of the AP 105 and STA 115 of reference picture 1-2 descriptions each side.

When being operated in up-link MU patterns, AP 105-b can by corresponding communication link 120-e, 120-f, 120-g and 120-h synchronously receives control, management or data from each of STA 115-e, 115-f, 115-g, 115-h Signal.Some possible up-link MU patterns include UL MU-MIMO patterns, UL OFDMA patterns, combination of the two or Another or a variety of MU patterns.

When being operated in one of MU patterns described in reference picture 2A or 2B, the competitions of AP 105 are obtained to sharing radio-frequency spectrum band On transmission opportunity access.When acquisition is won to the competition of the access of transmission opportunity, AP 105 is in the MU conveyer time of the meeting Between communicated with STA 115.In some instances, AP 105 accesses (EDCA) parameter set to compete using enhanced distributed channel Obtain the access to transmission opportunity.Used EDCA parameters are associated with access category, and are based at least partially on traffic Type and the determination that at least a frame transmits in MU patterns transmitted during transmission opportunity is identified.Fig. 3 A and 3B are explained How the example of EDCA parameter set can be identified.

Although Fig. 2A and 2B communicates with reference to AP 105 with multiple STA 115, AP 105 can quilt in some alternative solutions Any STA for being intended to communicate with one or more of the other STA with MU patterns is substituted.

Fig. 3 A are illustrated to be used for competing by AP according to various aspects of the disclosure and obtained to sharing the biography in radio-frequency spectrum band The example access category collection 300-a of the access of defeated chance.Access category collection 300-a includes single user (SU) access category subset 305 and MU access categories subset 310.SU access categories subset 305 includes the access category for different Traffic types, and has Include SU audio access classification 315-a, SU video access category 315-b, SU best effort access categories 315-c and SU for body Backstage access category 315-d.MU access categories subset 310 also includes the access category for different Traffic types, and it is specific and Speech includes MU audio access classification 315-e, MU video access category 315-f, MU best effort classifications 315-g and MU backstage and accessed Classification 315-h.

Each access category is with providing to the access priority for sharing radio-frequency spectrum band (for example, relative to other access categories The shared radio-frequency spectrum band of access in transmission opportunity priority) EDCA parameter sets be associated.In some instances, connect with SU Highest access priority can be provided to SU audio access classifications 315-a by entering the associated EDCA parameters of classification 305, to SU videos Access category 315-b provides time high access priority, provides the 3rd high access priority to SU best effort access categories 315-c, And provide minimum access priority to SU backstages access category 315-d.In an alternate embodiment, SU access categories 305 connect Entering priority can differently ranking.The EDCA parameter associated with MU access categories 310 can provide to MU access categories 310 Similar or different access priority ranking.For the access category associated with identical Traffic type (for example, SU audio access Classification 315-a and MU audio access classification 315-e), the EDCA parameter associated with these access categories can be provided to altogether Enjoy the identical access priority of radio-frequency spectrum band.Alternatively, the EDCA parameter associated with MU access categories can access to MU Classification provides access priority higher or lower compared with SU access categories.It is preferential that higher access is provided to MU access categories Level confirms that MU frames provide the communication between greater number of equipment.Lower access priority is provided to not having to MU access categories The legacy device of standby MU abilities provides additional access fairness.EDCA parameter sets can be such as associated access category or Person AP is it is contemplated that the linear function of the parameter of STA number communicated with during a frame etc.

Fig. 3 B are illustrated to be used for competing by AP according to various aspects of the disclosure and obtained to sharing the biography in radio-frequency spectrum band The example access category collection 300-b of the access of defeated chance.Access category collection 300-b includes the access class for different Traffic types Not, it is and specifically most including MU access category 315-i, SU audio access classification 315-j, SU video access categories 315-k, SU Power type access category 315-l and SU backstage access category 315-m.MU access categories 315-i and all MU Traffic types (examples Such as, voice, video, best effort and backstage) it is associated.

Each of these access categories and the EDCA parameter set phases that the access priority to sharing radio-frequency spectrum band is provided Association.In some instances, highest access priority is provided to MU access categories 315-i, and secondary high access priority is provided SU video access category 315-k, the 4th high access are provided to SU audio access classifications 315-j, the 3rd high access priority Priority is provided to SU best effort access category 315-l, and minimum access priority is provided to SU backstages access category 315-m.In an alternate embodiment, the access priority of access category can differently ranking.EDCA parameter sets can be such as Associated access category or AP is it is contemplated that the linear function of the parameter of STA number communicated with during a frame etc.

In some instances, queue (that is, traffic queue) is associated with each access category.In these examples, SU or The identifier of MU frames can be input into appropriate queue, and can be in access of the competition acquisition to the transmission opportunity for the frame When identify the EDCA parameter set associated with the queue (and access category associated with the queue).

Regardless of whether using the access category shown in Fig. 3 A or 3B, it is determined that SU or MU that transmission is associated with Traffic type The AP of frame is identified for being based at least partially on the Traffic type and being based in part on connecing for the determination of transmission SU or MU frames Enter the EDCA parameter sets of classification.Then AP is obtained to sharing the transmission opportunity on radio-frequency spectrum band using the EDCA parameter sets to compete Access so as to STA (in SU frames) or STA set communicated (in MU frames).The AP and STA can be reference picture 1-2 descriptions AP 105 and STA 115 each side example.

Fig. 4 illustrates the communication between AP and several STA on the shared radio-frequency spectrum band according to various aspects of the disclosure Example timeline 400.The AP and STA can be the example of the AP 105 and STA 115 of reference picture 1-2 descriptions each side. As an example, timeline 400 includes the competition period 405 and includes the transmission opportunity of optional trigger frame transmission period 410 (TxOP)415。

During the competition period 405, AP and miscellaneous equipment (for example, other AP and/or other STA) competition are obtained to altogether The access of radio-frequency spectrum band is enjoyed for transmission opportunity 415.In contention transmission opportunities 415, AP is used at least part ground In Traffic type and it is based in part on the access category of the determination using SU or MU frame traffics (for example, transmission or reception) EDCA parameter sets.When it is determined that during using MU frame traffics, EDCA parameters are based at least partially on Traffic type and the frame is MU frames Determination.

When the competition for obtaining the access to the transmission opportunity 415 for MU frames is won, AP is optionally in trigger frame Trigger frame is transmitted during transmitting the period 410.The trigger frame is sent to AP by the STA communicated with (for example, when MU frames are descending Recipient STA set is sent to during link MU frames, sender STA set, or two are sent to when MU frames are up-link MU frames Person).Trigger frame is resource can be distributed to STA and explicitly or implicitly indicate that STA can be transmitted during transmission opportunity 415 The poll frame of what type of traffic.Trigger frame may further indicate that the Traffic type that access contention is based on.Access contention is based on Traffic type main Traffic type is referred to alternatively as herein.Trigger frame may indicate that whether is the exchange that is allowed to during transmission opportunity It is that access category (AC) is limited.Similarly, trigger frame may indicate that whether the exchange being allowed to during transmission opportunity is traffic Type (TID) is limited.

During transmission opportunity, AP communicates in SU or MU frames with several STA.When being communicated in MU frames, AP can be to Recipient STA set transmission gathers reception from sender STA.Depending on rule set, AP used in AP and/or STA can Any Traffic type is transmitted or receives, but regardless of the EDCA parameters for being used to compete the access to transmission opportunity 415 in mark Main Traffic type is used during collection.In certain embodiments, this can pass through the exchange during transmission opportunity 415 is indicated in trigger frame It is not that AC (or TID) is limited to signal.The transmission of any Traffic type receives maximizing resource utilization and carried For greater flexibility.Alternatively, AP may need to pass afterwards transmitting or receive any Traffic type (that is, the second Traffic type) Send or receive at least one transmission of main Traffic type.In certain embodiments, this can be by indicating conveyer in trigger frame Exchange that can be during 415 is signaling for AC (or TID) configurations.Alternatively, AP may need transmit or receive it is any Traffic type (that is, the second Traffic type) transmits or received afterwards at least one biography of main Traffic type or higher access priority It is defeated.When STA is allowed to transmit on uplink during up-link MU frames, rule set is at some used in the STA The STA can be forbidden to be transmitted when the traffic of the not main Traffic types of the STA will transmit in situation.It is regular used in STA Collection alternatively allows STA a transfer control frame or management frame when the traffic of the not main Traffic types of the STA will transmit.STA Used rule set alternatively allows STA only to transmit the frame with the priority higher than main Traffic type.

Fig. 5 illustrates the coordination between each AP in the WLAN 500 according to various aspects of the disclosure.WLAN 500 is wrapped Include the first AP 105-c, the 2nd AP 105-d and the 3rd AP 105-e.Every AP is related from different Basic Service Sets (BSS) Connection.First AP 105-c are associated with the first STA 115-i and the 2nd STA 115-j, and the 2nd AP 105-d and the 3rd STA 115-k is associated.AP 105-c, 105-d, 105-e and STA 115-i, 115-j, 115-k can be reference picture 1-2 descriptions AP 105 and STA 115 each side example.

When AP 105-c, 105-d or 105-e win the competition of access of the acquisition to the transmission opportunity on shared radio-frequency spectrum band When, the AP can be intended to the STA set transmission trigger frames communicated with to it, as described in reference picture 4.In some instances, AP can compete the access obtained to the transmission opportunity in a channel (for example, main channel), but transmission triggering over multiple channels Frame.This may be such that other BSS STA 115 transmits in inappropriate time and is grouped.Coordinate to help to alleviate the problem between AP.

In coordinating between a form of AP, STA reports to its AP to be indicated in the AP associated with other BSS trigger frame Main Traffic type and the AP of other BSS in some cases whether use the limited rules of AC.For example, STA 115-j can To report the main Traffic type indicated in AP 105-e trigger frame to AP 105-c.AP 105-c then with adjacent AP (for example, AP 105-e) or adjacent AP set (for example, AP 105-d and AP 105-e) communication so that adjacent AP consults one with (all) Or multiple EDCA parameter sets.AP 105-c can by wired (for example, backhaul) or wireless communication link 505-a and 505-b come with AP 105-d or AP 105-e communicate.Negotiable EDCA parameters are connect with providing to the justice for sharing the transmission opportunity on radio-frequency spectrum band Enter.In some instances, the EDCA parameter sets consulted include being used for accessing based on the one or more of determination that frame is MU frames One or more EDCA parameter sets of classification.In certain embodiments, AP is coordinated with each other to constrain MU patterns or loosen to MU The AC constraints of pattern.

In coordinating between another form of AP, AP 105-c, 105-d and 105-e use the EDCA parameter sets of acquiescence simultaneously And it is not allowed to change transmission of the EDCA parameter sets for MU frames in BSS duration of existences.However, AP 105-c, 105-d and 105-e can change its EDCA parameter in some cases to be transmitted for SU.Coordinate that AP can be retained in MU between the AP of this form It is used for the differentiation of the EDCA parameter sets of its main Traffic type in pattern.

As the replacement coordinating AP, detecting the AP of the radical behavior from adjacent AP, to can instruct its associated STA abandons the frame for being sent to or being delivered from the adjacent AP.In some instances, the discarding of frame can be based in physics (PHY) header COLOR (color) field, the BSS that the COLOR fields can be outside BSS used in label detection to the AP of radical behavior. When abandoning frame, STA can be transmitted immediately the frame.

Fig. 6 shows the block diagram of the wireless device 600 according to various aspects of the disclosure.Wireless device 600 can be ginseng According to the example of each side of the AP 105 described by Fig. 1-2 and 5.Wireless device 600 can also be STA 115.Wireless device 600 Including receiver 605, transmission opportunity manager 610 and emitter 615.Wireless device 600 may also include processor.These groups Each of part can communicate with being in each other.

The receive information of receiver 605, such as packet, user data or with various information channels (for example, control channel, number It is believed that road etc.) associated control information.Some information are included in the information received in SU or MU frames.Some information can be passed Transmission opportunity manager 610 is passed, or is delivered to the other assemblies of wireless device 600.

Transmission opportunity manager 610 is based at least partially on the first Traffic type and identifies the determination for transmitting MU frames The first EDCA parameter sets for the first access category.Transmission opportunity manager 610 also competes acquisition on shared radio-frequency spectrum band Transmission opportunity access to be communicated in MU patterns with multiple stations.The competition is based at least partially on the first EDCA parameters Collection.

Emitter 615 transmits the signal received from the other assemblies of wireless device 600.In some instances, emitter 615 can be co-located in transceiver module with receiver 605.Emitter 615 may include individual antenna or multiple antennas.

Fig. 7 shows the block diagram of the wireless device 600-a according to various aspects of the disclosure.Wireless device 600-a can be with Be reference picture 1-2 and 5-6 description wireless device 600 or AP 105 each side example.Wireless device 600-a can also be STA 115.Wireless device 600-a includes receiver 605-a, transmission opportunity manager 610-a and emitter 615-a.Wirelessly Equipment 600-a may also include processor.Each of these components can communicate with being in each other.As illustrated, transmission opportunity Manager 610-a may include contention parameter selector 705 and medium access contention device 710.

Receiver 605-a receive informations, the information are delivered to transmission opportunity manager 610-a or are delivered to wireless Equipment 600-a other assemblies.Transmission opportunity manager 610-a performs the operation described by reference picture 6.Emitter 615-a is passed Send the signal that the other assemblies from wireless device 600-a receive.

Contention parameter selector 705 is based at least partially on the first Traffic type and will exchange MU frames with STA set It is determined that to identify the first EDCA parameter sets for the first access category, as described in reference picture 2-3.In some instances, One EDCA parameter sets provide and access of the 2nd EDCA parameter sets identical for the second access category to shared radio-frequency spectrum band Priority, wherein the second access category is based at least partially on the first Traffic type and frame is the determination of SU frames, such as reference picture 3A and 3B descriptions.Alternatively, the first EDCA parameter sets provide the access priority or lower higher than the 2nd EDCA parameter sets Access priority, as described in also referring to Fig. 3 A and 3B.The identifier of MU frames can be also input to by contention parameter selector 705 MU queues, and the first EDCA parameter sets are identified as to the EDCA parameter set associated with the MU queues.In some instances, first EDCA parameter sets can be the linear function of the parameter of the number of such as the first access category or STA set etc.MU patterns can To be DL OFDMA patterns, UL OFDMA patterns, DL MU-MIMO patterns or UL MU-MIMO patterns, such as reference picture 2A and 2B Description.

The competition of medium access contention device 710 is obtained to the access for sharing the transmission opportunity on radio-frequency spectrum band so as in MU patterns In with STA collective communications.The competition is based at least partially on the first EDCA parameter sets, as described in reference picture 3-4.

Fig. 8 A show the diagram of the system 800-a including wireless device 600-b according to various aspects of the disclosure.Nothing Line equipment 600-b can be the example of the wireless device 600 that reference picture 1-2 and 5-7 are described or AP 105 each side.Wirelessly set Standby 600-b can also be STA 115.Transmission opportunity manager 610-c can be the transmission opportunity manager of reference picture 6-7 descriptions The example of 610 each side.Transmission opportunity manager 610-c includes contention parameter selector 705-a and medium access contention device 710-a.Each of these modules perform the function that reference picture 7 describes.Transmission opportunity manager 610-c may also include MU teams MU competition telegons 865 between column manager 850, triggering frame supervisor 855, multi-user communication manager 860 or AP.Wirelessly set Standby 600-b also includes the component to be communicated for double-directional speech and data, including for transmitting the component of communication and logical for receiving The component of letter.For example, wireless device 600-b and STA 115-l and AP 105-f carries out two-way communication.

Wireless device 600-b includes processor 805, memory 815 (storage software (SW) 820), transceiver 835, one Or multiple antennas 840 and transmission opportunity manager 610-c, each of which can communicate directly or indirectly to one another (for example, via Bus 845).Transceiver 835 carries out two-way communication via antenna 840 or wired or wireless link with one or more networks, As described above.For example, transceiver 835 and STA 115-l and AP 105-f carries out two-way communication.Transceiver 835 includes modulatedemodulate Device is adjusted, modulated packet is simultaneously supplied to (all) antennas 840 to be connect for transmitting and demodulation by modem modulation packet Receive the packet from (all) antennas 840.Although wireless device 600-b is shown to have individual antenna 840, wireless device 600-b Also can have concomitantly can transmit or receive multiple multiple antennas 840 being wirelessly transferred.

Memory 815 may include random access memory (RAM) or read-only storage (ROM).Memory 815 can store bag The executable software/firmware code 820 of the computer-readable of instruction, computer is included, these instructions cause processor when executed 805 perform various functions described herein (for example, competition obtain to the access for sharing the transmission opportunity on radio-frequency spectrum band so as to With STA collective communications in MU patterns, etc.).Alternatively, computer can perform software/firmware code 820 and may not be located Reason device 805 directly performs, but (for example, when being compiled and performing) makes computer perform function described herein.Processing Device 805 may include intelligent hardware devices (for example, CPU (CPU), microcontroller, ASIC etc.).

Transmission opportunity manager 610-c performs the operation that reference picture 6 and 7 describes, and including contention parameter selector 705-a, medium access contention device 710-a, MU queue management device 850, triggering frame supervisor 855, multi-user communication manager 860 And MU competes telegon 865 between AP.

MU queue management devices 850 manage the multiple transmission queues associated from different EDCA parameter sets and access category. In some cases, the management of the MU queue management devices 850 MU queue associated with the EDCA parameter sets for the first access category, First access category is based on one or more Traffic types, as described in reference picture 3B.Triggering frame supervisor 855 is obtained winning Must to when the competition of the access of the transmission opportunity for transmitting MU frames on shared radio-frequency spectrum band to STA set (for example, receiving Square STA set or sender STA set) transmission trigger frame, as described in reference picture 4.In some instances, trigger frame includes obtaining The instruction for the first Traffic type that the competition for the access for sharing radio-frequency spectrum band must be based on.Multi-user communication manager 860 exists In MU patterns with STA collective communications.MU competes telegon 865 and communicated with adjacent AP (or adjacent AP gathers) to consult to be used between AP One or more EDCA parameter sets of one or more access categories, as described in reference picture 5.

Fig. 8 B show the diagram of the system 800-b including wireless device 600-c according to various aspects of the disclosure.Nothing Line equipment 600-c can be the example of the wireless device 600 that reference picture 1-2,5-7 and 8A are described or AP 105 each side.Nothing Line equipment 600-c can also be STA 115.Transmission opportunity manager 610-d can be the conveyer of reference picture 6,7 and 8A descriptions The example of each side of device 610 good at managing.Transmission opportunity manager 610-d includes contention parameter selector 705-b and medium Access contention device 710-b.Each of these modules perform the function that reference picture 7 describes.Transmission opportunity manager 610-d is also It may include MU queue management devices 850-a, triggering frame supervisor 855-a, MU is competed between multi-user communication manager 860-a or AP Telegon 865-a.Each of these modules perform the function of reference picture 8A descriptions.Wireless device 600-c also includes being used for Double-directional speech and the component of data communication, including for transmitting the component of communication and for receiving the component to communicate.It is for example, wireless Equipment 600-c and STA 115-m and AP 105-g carries out two-way communication.

Wireless device 600-c includes processor 805-a, memory 815-a, transceiver 835-a, one or more antennas 840-a and transmission opportunity manager 610-d, each of which can communicate (for example, via bus 845- directly or indirectly to one another a).As described above, transceiver 835-a is double via (all) antennas 840-a or wired or wireless link and one or more networks Communicated to ground.For example, transceiver 835-a and STA115-m and AP 105-g carry out two-way communication.Transceiver 835-a includes modulation Modulated packet is simultaneously supplied to antenna 840-a for transmitting and demodulating from day by demodulator, modem modulation packet The packet that line 840-a is received.Although wireless device 600-c is shown to have individual antenna 840-a, wireless device 600-c Also can have concomitantly can transmit or receive multiple multiple antenna 840-a being wirelessly transferred.

Memory 815-a may include random access memory (RAM) or read-only storage (ROM).Memory 815-a can be deposited Storage includes the computer-readable of instruction, computer can perform software/firmware code, and these instructions cause processor when executed 805-a perform various functions described herein (for example, competition obtain to the access for sharing the transmission opportunity on radio-frequency spectrum band with Just in MU patterns with STA collective communications, etc.).Alternatively, computer can perform software/firmware code and may not be located Reason device 805-a is directly performed, but (for example, when being compiled and performing) makes computer perform function described herein.Place Reason device 805-a may include intelligent hardware devices (for example, CPU (CPU), microcontroller, ASIC etc.).Fig. 8 B's In example, contention parameter selector 705-b, medium access contention device 710-b, MU queue management device 850-a, triggering frame supervisor MU competes telegon 865-a and is implemented as to be held by processor 805-a between 855-a, multi-user communication manager 860-a and AP Capable software/firmware code.

The component or transmission opportunity manager 610 of wireless device 600 can be individually or universally using being adapted to hard Part performs some or all of at least one ASIC for being applicable function to realize.Alternatively, these functions can be by least one IC One or more other processing units (or core) perform.In other examples, can be used can be by known in the art any Mode come program other kinds of integrated circuit (for example, structured/platform ASIC, field programmable gate array (FPGA) or Another semi-custom IC).The function of each unit can also in whole or in part with implement in memory, be formatted into by The instructions of one or more universal or special computing devices is realized.

Fig. 9 shows the flow chart for explaining the method for wireless communications 900 according to various aspects of the disclosure.Method 900 operation can be realized by wireless device 600, AP 105, STA 115 or its component for being described with reference to figure 1-8.Show at some In example, the operation of method 900 can be performed by transmission opportunity manager 610 that reference picture 6-8 is described.In some instances, nothing Line equipment 600 or AP 105 can perform described below for controlling the function element of the wireless device 600 or AP 105 to perform The code set of function.Additionally or alternatively, specialized hardware can be used to perform work(described below in wireless device 600 or AP 105 The aspects of energy.

In frame 905, wireless device 600 or AP 105 are based at least partially on the first Traffic type and will transmit MU frames It is determined that to identify the first EDCA parameter sets for the first access category, as described in reference picture 2-3.In some examples, frame Contention parameter selector 705 that 905 operation can be described by reference picture 7 performs.In frame 910, wireless device 600 or AP 105 Competition obtain to share radio-frequency spectrum band on transmission opportunity access so as in MU patterns with STA collective communications.The competition is extremely The first EDCA parameter sets are at least partly based on, as described in reference picture 3-4.In some examples, the operation of frame 910 can be by reference The medium access contention device 710 of Fig. 7 descriptions performs.

Figure 10 shows the flow chart for explaining the method for wireless communications 1000 according to various aspects of the disclosure.Side The operation of method 1000 can be by as realized with reference to the wireless device 600 described in figure 1-8, AP 105, STA115 or its component.One In a little examples, the operation of method 1000 can be performed by transmission opportunity manager 610 that reference picture 6-8 is described.In some examples In, wireless device 600 or AP 105 can perform for controlling the function element of the wireless device 600 or AP 105 to perform following retouch The code set for the function of stating.Additionally or alternatively, specialized hardware can be used to perform following description in wireless device 600 or AP 105 Function aspects.Method 1000 can also include each side of Fig. 9 method 900.

In frame 1005, the identifier of MU frames is input to MU queues by wireless device 600 or AP 105, as reference picture 3B is described 's.MU queues are associated with the first EDCA parameter sets for the first access category, and first access category is based on one or more Individual Traffic type.In some examples, the operation of frame 1005 can be held by the MU queue management devices 850 that reference picture 8A and 8B are described OK.In frame 1010, wireless device 600 or AP 105 identify the first EDCA parameter sets, as described in reference picture 3B.In some examples In, contention parameter selector 705 that the operation of frame 1010 can be described by reference picture 7 performs.In frame 1015, wireless device 600 Or AP 105 competition obtain to share radio-frequency spectrum band on transmission opportunity access so as in MU patterns with STA collective communications. The competition is based at least partially on the first EDCA parameter sets, as described in reference picture 3B and 4.In some examples, frame 1015 The medium access contention device 710 that can be described by reference picture 7 is operated to perform.

Figure 11 shows the flow chart for explaining the method for wireless communications 1100 according to various aspects of the disclosure.Side The operation of method 1100 can be by as realized with reference to the wireless device 600 described in figure 1-8, AP 105, STA115 or its component.One In a little examples, the operation of method 1100 can be performed by transmission opportunity manager 610 that reference picture 6-8 is described.In some examples In, wireless device 600 or AP 105 can perform for controlling the function element of the wireless device 600 or AP 105 to perform following retouch The code set for the function of stating.Additionally or alternatively, specialized hardware can be used to perform following description in wireless device 600 or AP 105 Function aspects.Method 1100 can also include each side of Fig. 9 or 10 method 900 or 1000.

In frame 1105, wireless device 600 or AP 105 are based at least partially on the first Traffic type and will transmit MU frames Determination identify the first EDCA parameter sets for the first access category, as described in reference picture 2-3.In some examples, The operation of frame 1105 can be performed by the contention parameter selector 705 as described in reference picture 7.In frame 1110, wireless device 600 or AP 105 competition obtain to share radio-frequency spectrum band on transmission opportunity access so as in MU patterns with STA collective communications.Should Competition is based at least partially on the first EDCA parameter sets, as described in reference picture 3-4.In some examples, the operation of frame 1110 The medium access contention device 710 that can be described by reference picture 7 performs.In frame 1115, wireless device 600 or AP 105 determine whether The competition for obtaining the access to transmission opportunity is won.When win obtain to the competition of the access of transmission opportunity when, wirelessly set Standby 600 or AP 105 in MU patterns and is somebody's turn to do to STA set transmission trigger frames (in frame 1120) and during the transmission opportunity STA collective communications (in frame 1125), as described in reference picture 4.In some examples, the operation of frame 1120 can by reference picture 8A and The triggering frame supervisor 855 of 8B descriptions is performed, and the operation of frame 1125 can be led to by reference picture 8A and the 8B multi-user described Manager 860 is believed to perform.In frame 1130, wireless device 600 or AP 105 suppress logical with STA set during transmission opportunity Letter.

Figure 12 shows the flow chart for explaining the method for wireless communications 1200 according to various aspects of the disclosure.Side The operation of method 1200 can be by as realized with reference to the wireless device 600 described in figure 1-8, AP 105, STA115 or its component.One In a little examples, the operation of method 1200 can be performed by transmission opportunity manager 610 that reference picture 6-8 is described.In some examples In, wireless device 600 or AP 105 can perform for controlling the function element of the wireless device 600 or AP 105 to perform following retouch The code set for the function of stating.Additionally or alternatively, specialized hardware can be used to perform following description in wireless device 600 or AP 105 Function aspects.Method 1100 can also include each side of the method 900,1000 or 1100 of Fig. 9,10 or 11.

In frame 1205, wireless device 600 or AP 105 are communicated with adjacent AP (or adjacent AP gathers) to consult to be used for one Or one or more EDCA parameter sets of multiple access categories, as described in reference picture 5.In some examples, the behaviour of frame 1205 MU competes telegon 865 to perform between the AP for making to be described by reference picture 8A and 8B.In frame 1210, wireless device 600 or AP 105 are based at least partially on the first Traffic type and the determination for transmitting MU frames are identified into first for the first access category EDCA parameter sets, as described in reference picture 2-3.In some examples, the operation of frame 1210 can be joined by the competition that reference picture 7 describes Selector 705 is counted to perform.In frame 1215, wireless device 600 or the competitions of AP 105 are obtained to sharing the transmission on radio-frequency spectrum band The access of chance so as in MU patterns with STA collective communications.The competition is based at least partially on the first EDCA parameter sets, such as joins Described according to Fig. 3-4.In some examples, the operation of frame 1215 can be described by reference picture 7 medium access contention device 710 is held OK.

Thus, method 900,1000,1100 and 1200 can provide the multi-user in the transmission opportunity in shared radio-frequency spectrum band Operation.It should be noted that method 900,1000,1100 and 1200 describes possible realization, and each operation in these methods and Step can be rearranged or otherwise be modified so that other realize is also possible.In some instances, come from In method 900,1000,1100 and 1200 both or more the aspects of person can be combined.

Description herein example is provided and and the scope, applicability or the example that are illustrated in non-limiting claim.Can be with Change is made without departing from the scope of the present disclosure to the function of key element and arrangement discussed.Various examples can be saved appropriately Slightly, substitute or add various codes or component.In addition, the feature with reference to described by some examples can be in other examples by group Close.

The explanation illustrated herein in conjunction with accompanying drawing describes example arrangement and can be implemented or fall in claim without representing In the range of all examples.Term as used herein " exemplary " means " being used as example, example or explanation ", and simultaneously unawareness Refer to " being better than " or " surpassing other examples ".This detailed description includes detail to provide the understanding to described technology.So And these technologies can be put into practice in the case of these no details.In some instances, well-known structure and set It is standby to show in form of a block diagram to avoid the concept of fuzzy described example.

In the accompanying drawings, similar assembly or feature can have identical reference.In addition, each component of same type can It is distinguish between by the second mark made a distinction in reference followed by dash line and between similar assembly.If The first reference is used only in the description, then the description can be applied to the similar assembly with the reference of identical first In any one component regardless of whether the second reference how.

Any of various different skill and technology can be used to represent for information described herein and signal. For example, can be by through data, instruction, order, information, signal, bit, symbol and the chip for illustrating to be addressed all the time above Voltage, electric current, electromagnetic wave, magnetic field or magnetic particle, light field or light particle or its any combinations represent.

Various illustrative frames and module with reference to described by disclosure herein are available be designed to carry out it is described herein The general processor of function, digital signal processor (DSP), ASIC, FPGA or other PLDs, discrete door or Transistor logic, discrete nextport hardware component NextPort or its any combinations are realized or performed.General processor can be microprocessor, But in alternative, processor can be any conventional processor, controller, microcontroller or state machine.Processor is also It may be implemented as combination (such as the combining of digital signal processor (DSP) and microprocessor, the multiple microprocessors of computing device Device, the one or more microprocessors to be cooperated with DSP core or any other such configuration).

Function described herein can be real in hardware, by the software of computing device, firmware or its any combinations It is existing.If realized in the software by computing device, each function can be used as one or more instruction or code to be stored in Transmitted on computer-readable medium or by it.Other examples and realization fall in the disclosure and scope of the following claims It is interior.For example, due to the essence of software, function described above can be used by the software of computing device, hardware, firmware, connect firmly Line or its any combinations are realized.Various positions can be also physically located in by realizing the feature of function, including is distributed to cause work( The each several part of energy is realized in different physical locations.In addition, as used in (including in claim) herein, arranged in project Lift (for example, with such as " at least one " or " one or more of " etc the project of wording enumerate) in use "or" instruction inclusive enumerate, with cause at least one the enumerating in such as A, B or C mean A or B or C or AB or AC or BC or ABC (that is, A and B and C).

Computer-readable medium includes both non-transitory, computer storage medium and communication media, and it includes facilitating computer Any medium that program shifts from one place to another.Non-transitory storage media can be accessed by a general purpose or special purpose computer Any usable medium.Non-limiting as example, non-transient computer-readable media may include that RAM, ROM, electric erasable can Program read-only memory (EEPROM), compact disk (CD) ROM or other optical disc storages, disk storage or other magnetic storage apparatus, Or it can be used to carry or store instruction or the expectation program code means of data structure form and can be by universal or special calculating Any other non-transitory media that machine or universal or special processor access.Any connection is also properly termed computer Computer-readable recording medium.For example, if software is using coaxial cable, fiber optic cables, twisted-pair feeder, digital subscriber line (DSL) or such as red Outside, the wireless technology of radio and microwave etc transmits from web site, server or other remote sources, then should Coaxial cable, fiber optic cables, twisted-pair feeder, digital subscriber line (DSL) or such as infrared, radio and microwave etc it is wireless Technology is just included among the definition of medium.As used herein disk (disk) and dish (disc) include CD, laser disc, light Dish, digital universal dish (DVD), floppy disk and blu-ray disc, which disk usually magnetically reproduce data and dish with laser come optically again Existing data.Combinations of the above is also included in the range of computer-readable medium.

It is in order that obtaining those skilled in the art can make or using the disclosure to provide description herein.To the disclosure Various modifications will be apparent for those skilled in the art, and the generic principles being defined herein can be applied to it He is deformed without departing from the scope of the present disclosure.Thus, the disclosure is not limited to example and design described herein, and It is that the broadest scope consistent with principle disclosed herein and novel feature should be awarded.

Claims (31)

1. a kind of method for being communicated at station, including：

It is based at least partially on the first Traffic type and accesses the determination for transmitting multi-user (MU) frame for first to identify The first enhanced distributed channel access (EDCA) parameter set of classification；And

Competition is obtained to the access for sharing the transmission opportunity on radio-frequency spectrum band to be communicated in MU patterns with multiple stations, wherein institute State competition and be based at least partially on the first EDCA parameter sets.

2. the method as described in claim 1, it is characterised in that further comprise：

To the multiple station transmission trigger frame when the competition for obtaining the access to the transmission opportunity is won.

3. method as claimed in claim 2, it is characterised in that the trigger frame includes the instruction of first Traffic type.

4. the method as described in claim 1, it is characterised in that further comprise：

When the competition for obtaining the access to the transmission opportunity is won during the transmission opportunity in the MU patterns Communicated with the multiple other stations.

5. the method as described in claim 1, it is characterised in that the first EDCA parameter sets are provided to the shared radio-frequency spectrum The access priority of band, the access priority are selected from the group for including the following：

With for be based at least partially on first Traffic type and the frame be single user (SU) frame determination second 2nd EDCA parameter set identicals access priority of access category, the access higher than the 2nd EDCA parameter sets are preferential Level and the access priority lower than the 2nd EDCA parameter sets.

6. the method as described in claim 1, it is characterised in that further comprise：

The identifier of the MU frames is input to MU queues；And

The first EDCA parameter sets are identified as the EDCA parameter set associated with the MU queues.

7. method as claimed in claim 6, it is characterised in that the MU queues are mapped to associated with multiple Traffic types MU frames.

8. the method as described in claim 1, it is characterised in that the first EDCA parameter sets are from including the following The linear function of the parameter of group：

First access category and the number at the multiple station.

9. the method as described in claim 1, it is characterised in that further comprise：

Communicated with adjacent AP to consult the first EDCA parameter sets.

10. the method as described in claim 1, it is characterised in that the MU frames are selected from the group for including the following：

Downlink orthogonal frequency division multiple access (OFDMA) frame, up-link OFDMA frames, downlink MU multiple-input and multiple-outputs (MU- MIMO) frame and up-link MU-MIMO frames.

11. the method as described in claim 1, it is characterised in that the multiple station is selected from the group for including the following：

Multiple recipient station and multiple senders station.

12. a kind of device for wireless communications, including：

Contention parameter selector, it is based at least partially on the first Traffic type and is used for the determination for transmitting MU frames to identify First EDCA parameter sets of the first access category；And

Medium access contention device, its compete obtain to share radio-frequency spectrum band on transmission opportunity access so as in MU patterns with Multiple station communications, wherein the competition is based at least partially on the first EDCA parameter sets.

13. device as claimed in claim 12, it is characterised in that further comprise：

Frame supervisor is triggered, it is touched when the competition for obtaining the access to the transmission opportunity is won to the multiple station transmission Send out frame.

14. device as claimed in claim 13, it is characterised in that the trigger frame includes the finger of first Traffic type Show.

15. device as claimed in claim 12, it is characterised in that further comprise：

Multi-user communication manager, it is when the competition for obtaining the access to the transmission opportunity is won in the transmission opportunity Period communicates in the MU patterns with the multiple station.

16. device as claimed in claim 12, it is characterised in that the first EDCA parameter sets are provided to the shared radio frequency The access priority of bands of a spectrum, the access priority are selected from the group for including the following：

With for be based at least partially on first Traffic type and the frame be SU frames determination the second access category The 2nd EDCA parameter set identicals access priority, the access priority higher than the 2nd EDCA parameter sets and ratio The lower access priority of the 2nd EDCA parameter sets.

17. device as claimed in claim 12, it is characterised in that further comprise：

The identifier of the MU frames is input to the MU queue management devices of MU queues；And

The first EDCA parameter sets are identified as the EDCA associated with the MU queues by wherein described contention parameter selector Parameter set.

18. device as claimed in claim 17, it is characterised in that the MU queues are mapped to related to multiple Traffic types The MU frames of connection.

19. device as claimed in claim 12, it is characterised in that the first EDCA parameter sets are to come to include the following Group parameter linear function：

First access category and the number at the multiple station.

20. device as claimed in claim 12, it is characterised in that further comprise：

Communicated with adjacent AP to consult MU competition telegons between the AP of the first EDCA parameter sets.

21. device as claimed in claim 12, it is characterised in that the MU patterns are selected from the group for including the following：

Downlink OFDMA patterns, up-link OFDMA patterns, downlink MU-MIMO patterns and up-link MU- MIMO mode.

22. device as claimed in claim 12, it is characterised in that the multiple station is selected from the group for including the following：

Multiple recipient station and multiple senders station.

23. a kind of equipment for radio communication, including：

For being based at least partially on the first Traffic type and identifying the determination for transmitting MU frames for the first access category The first EDCA parameter sets device；And

The access to the transmission opportunity on shared radio-frequency spectrum band is obtained for competition to communicate with multiple stations in MU patterns Device, wherein the competition is based at least partially on the first EDCA parameter sets.

24. equipment as claimed in claim 23, it is characterised in that further comprise：

For the device of trigger frame to be transmitted to the multiple station when the competition for obtaining the access to the transmission opportunity is won.

25. equipment as claimed in claim 24, it is characterised in that the trigger frame includes the finger of first Traffic type Show.

26. equipment as claimed in claim 23, it is characterised in that further comprise：

For when the competition for obtaining access to the transmission opportunity is won during the transmission opportunity in the MU moulds The device to be communicated in formula with the multiple station.

27. equipment as claimed in claim 23, it is characterised in that the first EDCA parameter sets are provided to the shared radio frequency The access priority of bands of a spectrum, the access priority are selected from the group for including the following：

With for be based at least partially on first Traffic type and the frame be SU frames determination the second access category The 2nd EDCA parameter set identicals access priority, the access priority higher than the 2nd EDCA parameter sets and ratio The lower access priority of the 2nd EDCA parameter sets.

28. equipment as claimed in claim 23, it is characterised in that the MU patterns are selected from the group for including the following：

Downlink OFDMA patterns, up-link OFDMA patterns, downlink MU multiple-input and multiple-outputs (MU-MIMO) pattern with And up-link MU-MIMO patterns.

29. a kind of non-transient computer-readable media for storing the code for radio communication, the code include performing with Instruction for following operation：

It is based at least partially on the first Traffic type and the determination for transmitting MU frames is identified for the first access category One EDCA parameter sets；And

Competition is obtained to the access for sharing the transmission opportunity on radio-frequency spectrum band to be communicated in MU patterns with multiple stations, wherein institute State competition and be based at least partially on the first EDCA parameter sets.

30. non-transient computer-readable media as claimed in claim 29, it is characterised in that the instruction can perform with：

To the multiple station transmission trigger frame when the competition for obtaining the access to the transmission opportunity is won.

31. non-transient computer-readable media as claimed in claim 29, it is characterised in that the first EDCA parameter sets carry For the access priority to the shared radio-frequency spectrum band, the access priority is selected from the group for including the following：

With for be based at least partially on first Traffic type and the frame be SU frames determination the second access category The 2nd EDCA parameter set identicals access priority, the access priority higher than the 2nd EDCA parameter sets and ratio The lower access priority of the 2nd EDCA parameter sets.